Tucker is my little shadow.. he will be sleeping on the couch, sleeping so sound that he is snoring, if I move away from the computer to go to the bathroom or whatever, no matter how quiet I try to be.. he jumps up and follows me. He will sit on the floor in the bathroom while Im in the shower, if I leave the house he will sit at the door whinning and yelping untill I get home and when I pull in the driveway he goes nuts running from my bedroom window (that looks into the driveway) to the front door barking and yipping. He is MY dog.
.. but my sheltie is the same way and so is my toy poodle to my husband, she just loves him to peices and gets sad when he isnt around, she will mope around all day waiting for him to get home then when he walks in the door she is one happy girl. I think dogs in general are loyal to thier owners, you treat them with lots of love and they do the same by being by your side all the time.